package net.sourceforge.fenixedu.presentationTier.Action.manager;

import net.sourceforge.fenixedu.applicationTier.Servico.manager.RemoveDegreeFromDepartment;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sourceforge.fenixedu.applicationTier.Filtro.exception.FenixFilterException;
import net.sourceforge.fenixedu.applicationTier.Servico.exceptions.FenixServiceException;
import net.sourceforge.fenixedu.domain.Degree;
import net.sourceforge.fenixedu.domain.Department;
import net.sourceforge.fenixedu.domain.Department.DepartmentDegreeBean;
import net.sourceforge.fenixedu.presentationTier.Action.base.FenixDispatchAction;
import net.sourceforge.fenixedu.presentationTier.Action.exceptions.FenixActionException;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

public class DepartmentDegreesDA extends FenixDispatchAction {

    public ActionForward prepare(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
	    throws FenixActionException, FenixFilterException {
	DepartmentDegreeBean departmentDegreeBean = (DepartmentDegreeBean) getRenderedObject();
	if (departmentDegreeBean == null) {
	    departmentDegreeBean = new DepartmentDegreeBean();
	}
	return forwardToPage(mapping, request, departmentDegreeBean);
    }

    public ActionForward associate(ActionMapping mapping, ActionForm form, HttpServletRequest request,
	    HttpServletResponse response) throws FenixActionException, FenixFilterException, FenixServiceException {
	executeFactoryMethod();
	return prepare(mapping, form, request, response);
    }

    public ActionForward remove(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
	    throws FenixActionException, FenixFilterException, FenixServiceException {
	final String departmentString = request.getParameter("departmentID");
	final String degreeString = request.getParameter("degreeID");
	final Department department = rootDomainObject.readDepartmentByOID(Integer.valueOf(departmentString));
	final Degree degree = rootDomainObject.readDegreeByOID(Integer.valueOf(degreeString));
	RemoveDegreeFromDepartment.run(department, degree);
	final DepartmentDegreeBean departmentDegreeBean = new DepartmentDegreeBean();
	departmentDegreeBean.setDepartment(department);
	return forwardToPage(mapping, request, departmentDegreeBean);
    }

    private ActionForward forwardToPage(final ActionMapping mapping, final HttpServletRequest request,
	    final DepartmentDegreeBean departmentDegreeBean) {
	request.setAttribute("departmentDegreeBean", departmentDegreeBean);
	return mapping.findForward("manageDepartmentDegrees");
    }

}